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October 9-13, 2006
Holiday Inn Select
Naperville, Illinois USA
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Important Information
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| Abstracts and proposals due |
June 30, 2006 |
| Notification to authors |
July 31, 2006 |
| Author materials due |
September 30, 2006 |
| Tutorials start |
October 9, 2006 |
| Conference starts |
October 11, 2006 |
| Email Contact |
tcl2006@tcl.tk |
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We are pleased to announce the 13th Annual Tcl/Tk conference (Tcl'2006),
sponsored by Noumena Corporation ,
Digital Smarties ,
Eolas Technologies and
ActiveState .
TJC: A Tcl to Java Compiler
Author: Mo DeJong
Abstract
A recent trend in corporate computing environments is the reimplementation
of legacy systems on a Java based software platform. Significant long-term
savings can be realized through use of a common software platform and
tools, but the costs of software development and retraining of engineers
remains high. If a legacy system can be ported to Java without having to
rewrite existing code, then most software development and retraining costs
can be avoided entirely. A large semiconductor manufacturer recently faced
just such a challenge and decided to evaluate Jacl (Tcl interpreter
written in Java) as a migration tool for a large legacy system implemented
in Tcl. Jacl was found to be satisfactory in all areas except one, runtime
execution speed. Native Tcl contains a runtime compiler and execution
engine while Jacl supports only interpreted execution. As a result, native
Tcl executes code from 10 to 50 times faster than Jacl. This paper
introduces TJC, a Tcl to Java compiler that converts Tcl procs into Java
bytecode and closes this performance gap. In many cases, TJC compiled Tcl
code executes more quickly than the same code running in native Tcl. This
paper describes the TJC compiler's initial design and implementation,
demonstrates code generated for some simple examples, and details
optimizations that have been implemented as the compiler has matured into
production ready software. In addition, performance of TJC compiled code
is compared to native Tcl and to other popular scripting languages
implemented in Java.
Conference Committee
| Cyndy Lilagan |
Eolas Technologies | Facilities Coordination |
| Clif Flynt |
Noumena Corp | General Chair |
| Steve Redler IV |
SR Technology | Program Chair |
| Steve Landers |
Digital Smarties | Program Co-chair |
| Kevin Kenny |
GE Global Research Center | |
| Jeffrey Hobbs |
ActiveState Corp | |
| Andreas Kupries |
ActiveState Corp | |
| Ron Fox |
NSCL Michigan State University | |
| Donal Fellows |
University of Manchester | |
| Larry Virden |
Tcl FAQ Maintainer | |
| Mike Doyle |
Eolas Technologies | |
| Gerald Lester |
HMS Software | |
Contact Information
tcl2006@tcl.tk
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